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Oil Pan And Lubricating Device - Patent 8066100

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Oil Pan And Lubricating Device - Patent 8066100 Powered By Docstoc
					
				
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Description: The present invention relates to an oil pan and a lubricating device to which the oil pan is applied.BACKGROUND ART For an oil pan applied to a lubricating device for lubricating a lubricated object such as an engine and an automatic transmission with lubricating oil (hereinafter merely called oil), a so-called double-tank type oil pan is well-known. Thedouble-tank type oil pan is provided with a first chamber that communicates with the lubricated object by being opened toward the lubricated object, a second chamber that is adjacent to the first chamber and communicates with the first chamber via an oilcommunicating channel and a partition provided between the first chamber and the second chamber. For related art of this type of double-tank type oil pan, a double-tank type oil pan disclosed in JP-A No. 222012/2003 can be given. This conventional type oil pan is provided with an oil pan separator having a concave part for forming the almost whole of the volume of a first chamber (or a main chamber) inside and the inside of the oil pan is vertically partitioned into thefirst chamber formed by the concave part and a second chamber (or a deputy chamber) outside the first chamber by the oil pan separator. The second chamber is formed substantially overall the sides and the bottom of the first chamber (or the concavepart) by providing predetermined clearance between a lower surface at the bottom of the oil pan separator and the bottom of the oil pan. In the first chamber, a strainer is arranged which is provided with an oil suction opening open to the vicinity ofan inner surface of the bottom of the first chamber and connected to an oil pump for delivering oil to a lubricated object via an oil channel. A communicating hole as the oil communicating channel which can be regulated a degree of the communication of oil between the first chamber and the second chamber according to the temperature of the oil is formed in a lower part of the side ofthe concave part of the oil